Messaging sign



FIG. 1 is a front top and right side perspective view of a messaging sign, showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front top and right side perspective view therof showing the messaging sign in an open position; and,

FIG. 9 is a front elevation view thereof showing the messaging sign in an open position.

The broken lines in the Figures are included to show unclaimed suject matter only and form no part of the claimed design. 

The ornamental design for a messaging sign, as shown and described. 